Properties of an electromagnetic twisted Gaussian Schell-model array beam propagating in anisotropic atmosphere turbulence

IF 0.7 4区物理与天体物理 Q4 OPTICS

Optica Applicata Pub Date : 2022-01-01 DOI:10.37190/oa220413

Xianyang Yang, Wenyu Fu, Xuehua Hu, Xue Li

引用次数: 0

Abstract

The effect of anisotropic atmosphere turbulence on propagation characteristics of an electromagnetic twisted Gaussian Schell-model array (EM TGSMA) beam is investigated. An analytical expression for the cross-spectral density function of such beam propagating through anisotropic turbulent atmosphere is derived and used to explore the evolutionary behavior of the spectral intensity, degree of polarization (DOP) and degree of coherence (DOC). An example illustrates the fact that twisted strength and anisotropic turbulent factors have an important impact on the behavior of spectral density, DOC and DOP, in particular. The rotation angle of the array beams can also be controlled by adjusting twisted strength. Furthermore, strong anisotropic turbulence was also found to cause significant mergence of the array beams. Our results might be beneficial for free-space communications of the partially coherent beams endowed with twist.

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电磁扭曲高斯-谢尔模型光束在各向异性大气湍流中的传播特性

研究了各向异性大气湍流对电磁扭曲高斯-谢尔模型阵列(emtgsma)波束传播特性的影响。推导了这种光束在各向异性湍流大气中传播的跨谱密度函数的解析表达式，并用于探索光谱强度、偏振度(DOP)和相干度(DOC)的演化行为。算例表明，扭曲强度和各向异性湍流因素对谱密度，特别是DOC和DOP的行为有重要影响。通过调整扭曲强度，可以控制阵列波束的旋转角度。此外，强各向异性湍流也会引起阵列光束的明显合并。我们的研究结果可能对具有扭曲的部分相干光束的自由空间通信有益。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Optica Applicata 物理-光学

CiteScore

1.00

自引率

16.70%

发文量

审稿时长

4 months

期刊介绍： Acoustooptics, atmospheric and ocean optics, atomic and molecular optics, coherence and statistical optics, biooptics, colorimetry, diffraction and gratings, ellipsometry and polarimetry, fiber optics and optical communication, Fourier optics, holography, integrated optics, lasers and their applications, light detectors, light and electron beams, light sources, liquid crystals, medical optics, metamaterials, microoptics, nonlinear optics, optical and electron microscopy, optical computing, optical design and fabrication, optical imaging, optical instrumentation, optical materials, optical measurements, optical modulation, optical properties of solids and thin films, optical sensing, optical systems and their elements, optical trapping, optometry, photoelasticity, photonic crystals, photonic crystal fibers, photonic devices, physical optics, quantum optics, slow and fast light, spectroscopy, storage and processing of optical information, ultrafast optics.